Please use this identifier to cite or link to this item: http://dspace.azti.es/handle/24689/1045
Files in This Item:
There are no files associated with this item.
Title: Large deep-sea zooplankton biomass mirrors primary production in the global ocean
Authors: Hernandez-Leon, S.; Koppelmann, R.; Fraile-Nuez, E.; Bode, A. and Mompean, C.; Irigoien, X.; Olivar, M. P.; Echevarria, F. and Fernandez de Puelles, M. L.; Gonzalez-Gordillo, J. I.; Cozar, A.; Acuna, J. L.; Agusti, S.; Duarte, C. M.
Abstract: The biological pump transports organic carbon produced by photosynthesis to the meso- and bathypelagic zones, the latter removing carbon from exchanging with the atmosphere over centennial time scales. Organisms living in both zones are supported by a passive flux of particles, and carbon transported to the deep-sea through vertical zooplankton migrations. Here we report globally-coherent positive relationships between zooplankton biomass in the epi-, meso-, and bathypelagic layers and average net primary production (NPP). We do so based on a global assessment of available deep-sea zooplankton biomass data and large-scale estimates of average NPP. The relationships obtained imply that increased NPP leads to enhanced transference of organic carbon to the deep ocean. Estimated remineralization from respiration rates by deep-sea zooplankton requires a minimum supply of 0.44 Pg C y(-1) transported into the bathypelagic ocean, comparable to the passive carbon sequestration. We suggest that the global coupling between NPP and bathypelagic zooplankton biomass must be also supported by an active transport mechanism associated to vertical zooplankton migration.
Keywords: ORGANIC-CARBON; VERTICAL-DISTRIBUTION; EQUATORIAL ATLANTIC; SCATTERING LAYERS; TROPHIC STRUCTURE; DIEL; TRANSPORT; MESOZOOPLANKTON; RESPIRATION; SEQUESTRATION
Issue Date: 2020
Publisher: NATURE RESEARCH
Type: Article
Language: 
DOI: 10.1038/s41467-020-19875-7
URI: http://dspace.azti.es/handle/24689/1045
ISSN: 2041-1723
Funder: Spanish Ministry of Economy and Competitiveness [CSD2008-00077, CTM2016-78853-R]
European UnionEuropean Commission [817806, 817578]
Appears in Publication types:Artículos científicos



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.